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Influence of the Planetary Boundary Layer physics on medium-range prediction of monsoon over India

Basu, S and Raman, S and Mohanty, UC and Rajagopal, EN (1999) Influence of the Planetary Boundary Layer physics on medium-range prediction of monsoon over India. Pure and Applied Geophysics, 155 (1). pp. 33-55.

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Abstract

The present study emphasizes the importance of proper representation of boundary layer physics in a general circulation model. The Turbulent Kinetic Energy (TKE) closure scheme incorporates important processes of the Planetary Boundary Layer (PBL) compared to a simplistic first-order closure model. Hence the model which has the TKE closure scheme is capable of simulating important weather systems associated with summer monsoon, such as monsoon depressions and lows that form over the Indian subcontinent quite well compared to the first-order closure model. The present study indicates better performance of the global model with the TKE scheme in the prediction of the monsoon circulation, including the tracks of the depressions over the Indian subcontinent. Medium-range weather prediction has also improved with the use of the TKE closure. However further studies are necessary to improve the forecast, with emphasis on boundary layer processes.

Item Type: Article
Additional Information: Copyright of this article belongs to Springer.
Uncontrolled Keywords: boundary layer; forecasting method; monsoon, India
Subjects: Meteorology and Climatology
Depositing User: Administrator ePrints@MoES
Date Deposited: 01 Jul 2015 10:09
Last Modified: 01 Jul 2015 10:09
URI: http://moeseprints.incois.gov.in/id/eprint/2087

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